if from erosion of the gums, by such things as restore them, strengthen and bind them; if wanting, it may be helped by the factitious; their ſordes are removed, by washing and cleaning them; and their blacknesse, by dentifrices.
made to happen artificially by people rather than happening naturally (facticius, from facere )
Made by art, in distinction from what is produced by nature; artificial; sham; formed by, or adapted to, an artificial or conventional, in distinction from a natural, standard or rule; not natural; as, factitious cinnabar or jewels; a factitious taste